Home / 139,639.41-209,456.28-34,459.29

Finding the Fourth Proportional to 139,639.41, 209,456.28 and 34,459.29

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Solution

The fourth proportional to 139,639.41, 209,456.28 and 34,459.29 is: 51,688.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,639.41 : 209,456.28 = 34,459.29 : x
  2. Step 2: Convert to fraction form
    139,639.41/209,456.28 = 34,459.29/x
  3. Step 3: Cross multiply
    139,639.41x = 209,456.28 × 34,459.29
  4. Step 4: Simplify right side
    139,639.41x = 7,217,714,694.84
  5. Step 5: Solve for x
    x = 7,217,714,694.84/139,639.41
  6. Step 6: Final answer
    x = 51,688.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.